Acceleration sensitive indicator

An acceleration sensitive indicator for indicating a centrifugation status of a biological sample, the acceleration sensitive indicator comprising:

• at least one closed chamber formed between two opposite surfaces, wherein the chamber comprises at least one indication zone, the at least one indication zone comprising at least two fluid transfer zones or at least one particle transfer zone, wherein at least one fluid transfer zone comprises,
• at least one solid carrier phase made of a porous adsorbing material and at least one fluid stabilized in the porous adsorbing material, wherein a g-force above a threshold-value is required in order for the at least one fluid to move out of the fluid transfer zone and to change distribution with respect to the at least one indication zone, or
• at least one non-stabilized non-Newtonian fluid having thixotropic and/or shear thinning properties wherein a shear stress induced by a g-force above a threshold-value is required in order for the non-Newtonian fluid to move out of the fluid transfer zone and to change distribution with respect to the at least one indication zone;
• wherein the at least one particle transfer zone comprises,
• at least one particle stabilizing fluid comprising stabilized dispersed particles, the particle stabilizing fluid having a particle stabilizing yield value, which allows the particles to be stabilized below a g-force threshold value, and to change distribution with respect to the at least one indication zone only upon application of a g-force above a threshold value, the change of distribution of the at least one fluid or particles indicating the centrifugation status.